The hardest working man in the mixed martial arts business, lightweight contender Donald "Cowboy" Cerrone, has his fourth fight of 2014 set, as he has verbally agreed to face off with fellow 155-pound standout Bobby "King" Green in the co-main event of UFC 178 in Las Vegas on September 27.

Green's original opponent for the MGM Grand Garden Arena card, Jorge Masvidal, will now face James Krause on the same card.